公开(公告)号：US11238878B2

公开(公告)日：2022-02-01

申请号：US16700246

申请日：2019-12-02

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS

Inventor： Ho-sang Sung ,  Sang-won Kang ,  Jong-hyun Kim ,  Eun-mi Oh

IPC: G10L19/00 ,  G10L21/00 ,  G10L19/038 ,  G10L19/06 ,  G10L19/04 ,  G10L19/022

Abstract: A quantization device includes: a trellis-structured vector quantizer which quantizes a first error vector between an N-dimensional (here, “N” is two or more) subvector and a first predictive vector; and an inter-frame predictor which generates a first predictive vector from the quantized N-dimensional subvector, wherein the inter-frame predictor uses a predictive coefficient comprising an N×N matrix and performs an inter-frame prediction using the quantized N-dimensional subvector of a previous stage.

公开(公告)号：US08805681B2

公开(公告)日：2014-08-12

申请号：US14020139

申请日：2013-09-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hosang Sung ,  Kangeun Lee ,  Sang-won Kang ,  Thomas R. Fischer ,  Ja-kyoung Jun

IPC: G10L21/00 ,  G10L19/12 ,  G10L19/02

CPC classification number: G10L19/0212 ,  G10L15/08 ,  G10L19/10 ,  G10L19/107 ,  G10L19/12 ,  G10L2019/0013

Abstract: A method and apparatus to search a codebook including pulses that model a predetermined component of a speech signal. The method includes the operations of selecting a predetermined number of paths corresponding to a predetermined number of pulse locations that are most consistent with the predetermined component, from among paths corresponding to pulse locations of a predetermined pulse location set allocated to at least one branch that connects one state of a predetermined Trellis structure to another state, performing the path selecting operation on each of states other than the one state, and selecting a path corresponding to pulse locations that are most consistent with the predetermined component, from among paths including the selected paths, wherein each path corresponds to a union of plural tracks of an Algebraic codebook. Accordingly, the number of calculations required during a codebook search is reduced.

Abstract translation: 一种搜索包括对语音信号的预定分量进行建模的脉冲的码本的方法和装置。 该方法包括从对应于分配给连接至少一个分支的预定脉冲位置集的脉冲位置的路径中选择对应于与预定分量最一致的预定数量的脉冲位置的预定数量的路径的操作 将预定网格结构的一个状态转换到另一状态，对除了一个状态以外的状态执行路径选择操作，并且从包括所选择的路径的路径中选择对应于与预定分量最一致的脉冲位置的路径 ，其中每个路径对应于代数码本的多个轨道的并集。 因此，减少码本搜索期间所需的计算次数。

公开(公告)号：US10373624B2

公开(公告)日：2019-08-06

申请号：US15033834

申请日：2014-11-03

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS

Inventor： Ki-Hyun Choo ,  Sang-won Kang ,  Ho-sang Sung ,  Eun-mi Oh ,  Jong-geun Jeon ,  Yaxing Li

IPC: G10L19/00 ,  G10L19/09 ,  G10L19/16 ,  G10L19/087 ,  G10L21/038

Abstract: A method of generating a wideband signal may include estimating a high-band spectrum parameter from a reconstructed narrowband signal based on a combination of at least two mapping schemes; estimating a high-band excitation signal based on the reconstructed narrowband signal; generating a high-band signal based on the estimated high-band spectrum parameter and the estimated high-band excitation signal; and generating a wideband signal by synthesizing the reconstructed narrowband signal with the high-band signal.

公开(公告)号：US11922960B2

公开(公告)日：2024-03-05

申请号：US17571597

申请日：2022-01-10

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS

Inventor： Ho-sang Sung ,  Sang-won Kang ,  Jong-hyun Kim ,  Eun-mi Oh

IPC: G10L19/00 ,  G10L19/022 ,  G10L19/038 ,  G10L19/04 ,  G10L19/06 ,  G10L21/00

CPC classification number: G10L19/038 ,  G10L19/022 ,  G10L19/04 ,  G10L19/06

Abstract: A quantization device includes: a trellis-structured vector quantizer which quantizes a first error vector between an N-dimensional (here, “N” is two or more) subvector and a first predictive vector; and an inter-frame predictor which generates a first predictive vector from the quantized N-dimensional subvector, wherein the inter-frame predictor uses a predictive coefficient comprising an N×N matrix and performs an inter-frame prediction using the quantized N-dimensional subvector of a previous stage.

公开(公告)号：US11025552B2

公开(公告)日：2021-06-01

申请号：US15757540

申请日：2016-09-05

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  INDUSTRY—UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS

Inventor： Ho-sang Sung ,  Sang-won Kang ,  Jong-hyun Kim ,  Eun-mi Oh ,  Yaxing Li ,  Kyung-hun Jung

IPC: G10L21/04 ,  H04L12/805 ,  H04L12/811 ,  H04L12/815 ,  H04L12/841 ,  H04L12/927

Abstract: A playout delay adjustment method includes: adjusting a playout delay surplus based on a difference value between a first playout delay obtained in a first scheme and a second playout delay obtained in a second scheme and determining an adaptation type of a current frame according to whether a previous frame is an active frame; and when the determined adaptation type is signal-based adaptation, performing time scale modification (TSM) according to an adaptation scheme determined according to a comparison result between the first playout delay and the second playout delay and a comparison result between a target delay and the first playout delay.

公开(公告)号：US20220130403A1

公开(公告)日：2022-04-28

申请号：US17571597

申请日：2022-01-10

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS

Inventor： Ho-sang SUNG ,  Sang-won Kang ,  Jong-hyun Kim ,  Eun-mi Oh

IPC: G10L19/038 ,  G10L19/06 ,  G10L19/04 ,  G10L19/022

Abstract: A quantization device includes: a trellis-structured vector quantizer which quantizes a first error vector between an N-dimensional (here, “N” is two or more) subvector and a first predictive vector; and an inter-frame predictor which generates a first predictive vector from the quantized N-dimensional subvector, wherein the inter-frame predictor uses a predictive coefficient comprising an N×N matrix and performs an inter-frame prediction using the quantized N-dimensional subvector of a previous stage.